Nobel Peace Prize winner Malala Yousafzai has returned to Pakistan for the first time since being shot by Taliban militants.
Ms Yousafzai, now aged 20 and a vocal human rights activist, was shot in the head by a gunman for campaigning for female education in 2012.
She is expected to hold meetings with Prime Minister Shahid Khaqan Abbasi.
Details of the trip have been kept secret "in view of the sensitivity", an official told AFP news agency.
Pakistani television broadcast video that appeared to show her with her parents at Islamabad's Benazir Bhutto International Airport under tight security.
The trip is expected to last four days and she arrived with officials from her Malala Fund group, local media report.
It has not been confirmed if she will visit her family's hometown of Swat in the country's rural north-west during her visit.
Many on Twitter called for a warm welcome for the activist after news of her overnight homecoming broke.(BBC)